423531602 has 16 divisors (see below), whose sum is σ = 707759640. Its totient is φ = 188735232.

The previous prime is 423531593. The next prime is 423531643. The reversal of 423531602 is 206135324.

It can be written as a sum of positive squares in 4 ways, for example, as 398441521 + 25090081 = 19961^2 + 5009^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280103 + ... + 281610.

Almost surely, 2^423531602 is an apocalyptic number.

423531602 is a deficient number, since it is larger than the sum of its proper divisors (284228038).

423531602 is a wasteful number, since it uses less digits than its factorization.

423531602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561757.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 423531602 is about 20579.8834301849. The cubic root of 423531602 is about 750.9804079161.

Adding to 423531602 its reverse (206135324), we get a palindrome (629666926).

The spelling of 423531602 in words is "four hundred twenty-three million, five hundred thirty-one thousand, six hundred two".